1999 Mercedes 310 — MOT History by Age

How cars manufactured in 1999 perform at MOT as they age

27 years

Current Age

45.5%

Latest Pass Rate

611

Total Tests (All Years)

182,070 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 18

This car: 45.5%

Average: 54.3%

⚠️ 8.8% below average (8383 models compared)

How This Car Ages

Pass rate progression for the 1999 Mercedes 310 as it ages.

10 yrs40.0%

→ ↑10.0%

11 yrs50.0%

→ ↓15.5%

12 yrs34.5%

→ ↑11.9%

13 yrs46.4%

→ ↓7.9%

14 yrs38.5%

→ ↑1.1%

15 yrs39.6%

→ ↑0.1%

16 yrs39.7%

→ ↑6.8%

17 yrs46.5%

→ ↓1.0%

18 yrs45.5%

📊 View as table

Age	Pass Rate	Tests
10 yrs	40.0%	110
11 yrs	50.0%	96
12 yrs	34.5%	84
13 yrs	46.4%	69
14 yrs	38.5%	65
15 yrs	39.6%	53
16 yrs	39.7%	58
17 yrs	46.5%	43
18 yrs	45.5%	33

Pass Rate Trend

How the 1999 Mercedes 310 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (18 yrs)	45.5%	33
2016 (17 yrs)	46.5%	43
2015 (16 yrs)	39.7%	58
2014 (15 yrs)	39.6%	53
2013 (14 yrs)	38.5%	65
2012 (13 yrs)	46.4%	69
2011 (12 yrs)	34.5%	84
2010 (11 yrs)	50%	96
2009 (10 yrs)	40%	110

Year-by-Year MOT Results

2009High Fail Rate

40.0%

Age (yrs) 10Tests 110Avg Mileage 180,311Top Failure Lamps, Reflectors and Electrical Equipment — 51.8%

2010High Fail Rate

50.0%

Age (yrs) 11Tests 96Avg Mileage 178,254Top Failure Lamps, Reflectors and Electrical Equipment — 39.6%

2011High Fail Rate

34.5%

Age (yrs) 12Tests 84Avg Mileage 178,633Top Failure Brakes — 53.6%

2012High Fail Rate

46.4%

Age (yrs) 13Tests 69Avg Mileage 181,140Top Failure Brakes — 47.8%

2013High Fail Rate

38.5%

Age (yrs) 14Tests 65Avg Mileage 201,970Top Failure Brakes — 160.0%

2014High Fail Rate

39.6%

Age (yrs) 15Tests 53Avg Mileage 185,877Top Failure Brakes — 152.8%

2015High Fail Rate

39.7%

Age (yrs) 16Tests 58Avg Mileage 189,000Top Failure Brakes — 155.2%

2016High Fail Rate

46.5%

Age (yrs) 17Tests 43Avg Mileage 181,162Top Failure Lamps, Reflectors and Electrical Equipment — 125.6%

2017High Fail Rate

45.5%

Age (yrs) 18Tests 33Avg Mileage 182,070Top Failure Brakes — 97.0%

MOT results for 1999 Mercedes 310 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	10	40.0%	110	180,311	Lamps, Reflectors and Electrical Equipment — 51.8%
2010	11	50.0%	96	178,254	Lamps, Reflectors and Electrical Equipment — 39.6%
2011	12	34.5%	84	178,633	Brakes — 53.6%
2012	13	46.4%	69	181,140	Brakes — 47.8%
2013	14	38.5%	65	201,970	Brakes — 160.0%
2014	15	39.6%	53	185,877	Brakes — 152.8%
2015	16	39.7%	58	189,000	Brakes — 155.2%
2016	17	46.5%	43	181,162	Lamps, Reflectors and Electrical Equipment — 125.6%
2017	18	45.5%	33	182,070	Brakes — 97.0%

Common MOT Failures

Top failure categories across all test years for 1999 Mercedes 310, with age trends.

Brakes

95.1%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

77.3%

↑ Increases with age

Suspension

72.2%

↑ Increases with age

Body, Structure and General Items

34.6%

↑ Increases with age

Tyres

29.6%

↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	43.6% (10 yrs)	97.0% (18 yrs)	+53.4%	🔴 ↑
Suspension	33.6% (10 yrs)	54.5% (18 yrs)	+20.9%	🔴 ↑
Lamps, Reflectors and Electrical Equipment	51.8% (10 yrs)	63.6% (18 yrs)	+11.8%	🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes 310 page →

About This Data

This page shows how Mercedes 310 cars manufactured in 1999 perform at MOT as they age. Data spans from 2009 to 2017, covering 611 tests. Pass rates naturally decline with age as components wear.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.